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- GE
- IS220PDOAH1A
- Discrete Output Pack
- USA
- 100 mm × 50 mm × 30 mm
- 0.34kg
- Xiamen, China
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Product Introduction
The IS220PDOAH1A is a discrete output I/O pack module within the Mark VIe distributed control system family. It provides discrete (on/off) output control signals for external devices—such as relays, solenoids, actuators—in a high-reliability industrial environment.
It is designed to mount into the modular I/O rack architecture, enabling the system controller to manage field devices via discrete output terminal boards. The module supports integration with multiple discrete output boards, supports feedback signals, and facilitates modular installation, maintenance, and replacement.
In systems such as power generation turbines, process plants, petrochemical installations, the IS220PDOAH1A plays a key role in linking the control network to discrete field hardware—ensuring accurate switching, reliable operation, and system resilience.
Technical Specifications
| Parameter | Description |
|---|---|
| Rated Input Voltage | Typically 28 V DC nominal |
| Operating Voltage Range | Approximately 24 V DC input (varies by installation) |
| Output Channels | Up to 12 discrete output relay channels (via terminal boards) |
| Output Current Rating | Up to 4 A per channel (depending on output board) |
| Connector / Ports | Dual Ethernet RJ45 ports (for I/O network) + DC power connector |
| Indicators | Multiple LEDs: Power, Attention, Tx/Rx, Link |
| Mounting Type | Plug-in module compatible with Mark VIe I/O rack |
| Operating Temperature Range | Roughly –40 °C to +85 °C (depending on variant) |
| Dimensions | 100 mm × 50 mm × 30 mm (approximate) |
| Weight | 0.34 kg (approximately) |
| Feedback Support | Accepts feedback signals from discrete output terminal boards |
| Protection Features | Over-current, over-voltage, short-circuit protection (as per variant) |
| Network Compatibility | Works within the Mark VIe I/O Ethernet network architecture |
Applications
The IS220PDOAH1A module is employed in various industrial automation scenarios, including:
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In gas or steam turbine control systems, the module drives discrete outputs such as solenoid valves, contactors, and status relays as part of the turbine control logic.
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In power generation plants, the module interfaces between the distributed control system and discrete field devices in the generator, exciter, breaker control or auxiliary systems.
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In petrochemical or refining plants, the module is used for switch logic, alarm/trip control, valve actuation, and discrete signal routing in a high-availability system.
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In marine or offshore platforms, where discrete outputs control actuators, alarms, and safety systems in harsh environment conditions.
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In industrial automation systems, where legacy discrete output boards are integrated into modern I/O rack structures, enabling modular upgrades and maintenance.
Advantages
Choosing the IS220PDOAH1A provides several key advantages:
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High reliability in discrete output control — supports up to twelve discrete channels and integrates feedback, enabling robust field device actuation.
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Compact and lightweight design (~0.34 kg) allows installation in dense control racks without significant space penalty.
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Modular architecture — plug-in module design means fast replacement, simplified maintenance, and minimal system downtime.
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Broad environmental tolerance — designed to tolerate wide temperature ranges (-40 °C to +85 °C in some variants) and industrial conditions.
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Networked integration — dual Ethernet ports ensure compatibility with modern distributed I/O systems for redundancy and performance.
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Backward/forward compatibility — works within the Mark VIe ecosystem, enabling legacy device integration and future system expansion.
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Precise discrete control — with suitably paired terminal boards, it supports both solid-state and electromagnetic relays, giving flexibility in field device choice.
Brand and Series
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Brand: GE Fanuc
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Series: Mark VIe I/O Pack Series (IS220 family)
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Product Type: Discrete Output Pack
The IS220PDOAH1A belongs to the IS220 I/O pack family, which comprises various modules (analog I/O, discrete I/O, communication packs, feedback modules) designed for the Mark VIe distributed control system. This series is widely used in high-end industrial automation and turbine control applications.
Related Models – Same Series or Compatible
下面是五个同一系列或高度相关的模块型号推荐：
| Model | Function Description | Key Parameters (Size / Weight) |
|---|---|---|
| IS220PTCCH1A | Thermocouple Input Module – high-density temperature input interface. | Approx. 82 mm × 122 mm × 60 mm ; ~0.36 kg |
| IS220PAICH1A | Analog Input/Output Pack – processes multiple analog sensor signals. | Approx. 150 mm × 100 mm × 50 mm ; ~2.0 kg |
| IS220PSCAH1A | Serial Communication I/O Pack – supports RS-232/422/485 field devices. | Approx. 292 mm × 130 mm × 27 mm ; ~0.36 kg |
| IS220PSVOH1A | Servo Valve Output Pack – drives servo valves with analog/PWM outputs. | Approx. 224 mm × 89 mm × 100 mm ; ~0.45 kg |
| IS220PPDAH1A | Power Distribution I/O Pack – manages DC power distribution within I/O rack. | Approx. 170 mm × 110 mm × 30 mm ; ~0.65 kg |
Popular Models – Same Brand (GE Fanuc)
下面列出五个该品牌中常见或热门的模块型号：
| Model | Function Description | Key Parameters (Size / Weight) |
|---|---|---|
| IS220PSVOH1A | Servo Valve Output Pack – control for servo systems in turbines. | Approx. 224 mm × 89 mm × 100 mm ; ~0.45 kg |
| IS220PPRFH1A | PROFIBUS Master Gateway Pack – integrates PROFIBUS devices into Ethernet I/O. | Approx. 263 mm × 58 mm × 28 mm ; ~0.43 kg |
| IS220PAOCH1B | Analog Output Pack – precise analog outputs for control loops. | Approx. 150 mm × 100 mm × 50 mm ; ~0.36 kg |
| IS220PAICH2B | 2nd-Gen Analog I/O Pack – enhanced analog input density and performance. | Approx. 122 mm × 82 mm × 60 mm ; ~0.40 kg |
| IS220UCSAH1A | Controller Pack – main CPU/control module for the Mark VIe system. | Approx. 150 mm × 100 mm × 50 mm ; ~0.50 kg |
FAQ (10 Questions & Answers)
Q1: What is the primary role of the IS220PDOAH1A?
A1: Its main role is to provide discrete output channels for field devices, such as relays or solenoids, as part of a modular I/O rack within the Mark VIe system.
Q2: How many discrete outputs can it support?
A2: It can support up to twelve discrete output relay channels when used with compatible terminal boards.
Q3: What is the typical supply voltage and current for this module?
A3: The nominal input voltage is around 28 V DC and current draw is modest (module weight ~0.34 kg).
Q4: What are the physical dimensions and weight of the module?
A4: The dimensions are approximately 100 mm × 50 mm × 30 mm and the weight is approximately 0.34 kg.
Q5: What kind of environmental conditions can it operate in?
A5: It can operate in a wide temperature range, for example from -40 °C to +85 °C in some variants, and supports non-condensing humidity up to 95 %.
Q6: Is the IS220PDOAH1A suitable for use in high-availability systems?
A6: Yes. Its modular design, compatibility with redundant networks and field-device integration make it suitable for high-availability control systems.
Q7: How does it integrate into the system network?
A7: It uses dual Ethernet RJ-45 ports for connection into the I/O network and interfaces with terminal boards for discrete outputs.
Q8: Does the module support feedback from the output terminal boards?
A8: Yes. It supports feedback signals from discrete output terminal boards, enabling diagnostic and monitoring capability.
Q9: Can it control both solid-state and electromagnetic relays?
A9: Yes. The module is compatible with both types of relays when used with the appropriate terminal boards.
Q10: What maintenance or replacement considerations should be kept in mind?
A10: Being a plug-in modular I/O pack, it allows easy replacement of the module. However, proper shutdown or safe procedure should be followed to avoid interrupting the overall system’s operation.
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